The best synonym is "talkative." "Loquacious" comes from the Latin root "loqui" meaning speak. Therefore, someone who is "loquacious "speaks a great deal or is talkative, with an additional meaning that their speech is eloquent.

"Tranquil" refers to disposition, not speech. "Mute" is an antonym to "loquacious," as it refers to silent or incapable of speech.

The Latin root -clin- means lean, lean back, so to "recline" means to lean back, to lie back in a chair. Another example of a -clin- word is "incline" which means slope, leaning forwards. Additionally, "consume" means devour, eat, use. Finally, the other three answer choices are all synonyms they all mean to annoy, pester, and bother someone.

The Latin root -voc- means voice, speak, call, as in "vocal" which means outspoken, loud or "vocalize" which means speak, express. So, "advocate" means speak out in favor of, speak in support of, recommend. To provide additional help, "serenade" means sing to, play music for; "disparage" means mock and criticize; "allocate" means decide who gets what share of something and then hand it out; "determine" means decide.

The Latin root -cogn- means know, knowledge, as in "recognize" which means to notice or know someone. So, "incognito" means in disguise, dressed up so no one will know you. Additionally, "revealed" means displayed, shown after previously being hidden; "despised" means hated; "surmised" means guessed at, estimated at, determined is true without conclusive evidence; "redundant" means no longer useful because it has been replaced by something better.

The Latin root -cess- means go, yield, obtain. So "accessible" means able to be reached, able to be accessed, reachable. Another example of a -cess- word is "exceed" which means to go beyond. Additionally, "fortunate" means lucky; "hapless" means unfortunate, unlucky; "malleable" means flexible, changeable. 

The Latin root -vac- means empty, without, as in "vacant" which means empty, not occupied. So, "evacuate" means to remove people from an area, to make an area empty. To provide additional help, "insert" means add to and the other three answer choices are all synonyms they all mean to hint at or propose an idea. 

The Latin root -pon- means put, so "postpone" means to put off until later, to delay. Additionally, "detect" means notice, observe the presence of; "vanish" means disappear; "scold" means tell off, punish. 

The latin root -pugn- means fight, so "pugnacious" means aggressive, combative, quick to anger, hostile. To provide additional help, "callous" means harsh and uncaring; "reprehensible" means behavior that is disgraceful, deserving of harsh criticism; "cooperative" means helpful, willing to work with others; "squalid" means dirty, filthy, poor and wretched. 

The Latin roots -noun- and -nunc- mean declare, speak about, as in "denounce," which means to speak out against something, to declare something is wrong or malevolent. So, "announce" means to publicly declare. Additionally, "reprise" means repeat a performance of, repeat a character; "concentrate" means focus on; "possess" means have, own; "suffer" means experience pain. 

The Latin root -dur- means tough, hard, lasting, as in "durable," which means able to withstand pressure, long lasting, tough. So, "enduring" means lasting or continuing. Additionally, "halting" means pausing, stopping; "completing" means finishing.